Home / 158,248.20-218,385.09-86,627.01

Finding the Fourth Proportional to 158,248.20, 218,385.09 and 86,627.01

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Solution

The fourth proportional to 158,248.20, 218,385.09 and 86,627.01 is: 119,546.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    158,248.20 : 218,385.09 = 86,627.01 : x
  2. Step 2: Convert to fraction form
    158,248.20/218,385.09 = 86,627.01/x
  3. Step 3: Cross multiply
    158,248.20x = 218,385.09 × 86,627.01
  4. Step 4: Simplify right side
    158,248.20x = 18,918,047,375.28
  5. Step 5: Solve for x
    x = 18,918,047,375.28/158,248.20
  6. Step 6: Final answer
    x = 119,546.68

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.